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Posted to commits@hbase.apache.org by mi...@apache.org on 2015/12/07 22:29:48 UTC

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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/80bb2192/0.94/apidocs/org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html
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diff --git a/0.94/apidocs/org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html b/0.94/apidocs/org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html
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+<h2 title="Class HDFSBlocksDistribution.HostAndWeight" class="title">Class HDFSBlocksDistribution.HostAndWeight</h2>
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+<pre>public static class <a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.50">HDFSBlocksDistribution.HostAndWeight</a>
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+<div class="block">Stores the hostname and weight for that hostname.
+
+ This is used when determining the physical locations of the blocks making
+ up a region.
+
+ To make a prioritized list of the hosts holding the most data of a region,
+ this class is used to count the total weight for each host.  The weight is
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+<th class="colFirst" scope="col">Modifier and Type</th>
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+<div class="block">comparator used to sort hosts based on weight</div>
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+                                                                        long&nbsp;weight)</code>
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+<h3>Method Summary</h3>
+<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
+<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
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+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
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+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html#addWeight(long)">addWeight</a></strong>(long&nbsp;weight)</code>
+<div class="block">add weight</div>
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+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html#getHost()">getHost</a></strong>()</code>&nbsp;</td>
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+<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang
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+<h3>Constructor Detail</h3>
+<a name="HDFSBlocksDistribution.HostAndWeight(java.lang.String, long)">
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+<h4>HDFSBlocksDistribution.HostAndWeight</h4>
+<pre>public&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html#line.60">HDFSBlocksDistribution.HostAndWeight</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;host,
+                                    long&nbsp;weight)</pre>
+<div class="block">Constructor</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>host</code> - the host name</dd><dd><code>weight</code> - the weight</dd></dl>
+</li>
+</ul>
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+<pre>public&nbsp;void&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html#line.69">addWeight</a>(long&nbsp;weight)</pre>
+<div class="block">add weight</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>weight</code> - the weight</dd></dl>
+</li>
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+<a name="getHost()">
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+</a>
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+<dl><dt><span class="strong">Returns:</span></dt><dd>the host name</dd></dl>
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+<dl><dt><span class="strong">Returns:</span></dt><dd>the weight</dd></dl>
+</li>
+</ul>
+</li>
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+</li>
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new file mode 100644
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+<!-- ======== START OF CLASS DATA ======== -->
+<div class="header">
+<div class="subTitle">org.apache.hadoop.hbase</div>
+<h2 title="Class HDFSBlocksDistribution" class="title">Class HDFSBlocksDistribution</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
+<li>
+<ul class="inheritance">
+<li>org.apache.hadoop.hbase.HDFSBlocksDistribution</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<hr>
+<br>
+<pre>public class <a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.36">HDFSBlocksDistribution</a>
+extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
+<div class="block">Data structure to describe the distribution of HDFS blocks amount hosts.
+
+ Adding erroneous data will be ignored silently.</div>
+</li>
+</ul>
+</div>
+<div class="summary">
+<ul class="blockList">
+<li class="blockList">
+<!-- ======== NESTED CLASS SUMMARY ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="nested_class_summary">
+<!--   -->
+</a>
+<h3>Nested Class Summary</h3>
+<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation">
+<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Class and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>static class&nbsp;</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution.HostAndWeight</a></strong></code>
+<div class="block">Stores the hostname and weight for that hostname.</div>
+</td>
+</tr>
+</table>
+</li>
+</ul>
+<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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+<li class="blockList"><a name="constructor_summary">
+<!--   -->
+</a>
+<h3>Constructor Summary</h3>
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+<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colOne" scope="col">Constructor and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colOne"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#HDFSBlocksDistribution()">HDFSBlocksDistribution</a></strong>()</code>
+<div class="block">Constructor</div>
+</td>
+</tr>
+</table>
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+</ul>
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+</a>
+<h3>Method Summary</h3>
+<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
+<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#add(org.apache.hadoop.hbase.HDFSBlocksDistribution)">add</a></strong>(<a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution</a>&nbsp;otherBlocksDistribution)</code>
+<div class="block">This will add the distribution from input to this object</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>void</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#addHostsAndBlockWeight(java.lang.String[],%20long)">addHostsAndBlockWeight</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;hosts,
+                                            long&nbsp;weight)</code>
+<div class="block">add some weight to a list of hosts, update the value of unique block weight</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>float</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getBlockLocalityIndex(java.lang.String)">getBlockLocalityIndex</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;host)</code>
+<div class="block">return the locality index of a given host</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution.HostAndWeight</a>&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getHostAndWeights()">getHostAndWeights</a></strong>()</code>&nbsp;</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getTopHosts()">getTopHosts</a></strong>()</code>
+<div class="block">return the sorted list of hosts in terms of their weights</div>
+</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution.HostAndWeight</a>[]</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getTopHostsWithWeights()">getTopHostsWithWeights</a></strong>()</code>
+<div class="block">return the sorted list of hosts in terms of their weights</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code>long</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getUniqueBlocksTotalWeight()">getUniqueBlocksTotalWeight</a></strong>()</code>&nbsp;</td>
+</tr>
+<tr class="rowColor">
+<td class="colFirst"><code>long</code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#getWeight(java.lang.String)">getWeight</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;host)</code>
+<div class="block">return the weight for a specific host, that will be the total bytes of all
+ blocks on the host</div>
+</td>
+</tr>
+<tr class="altColor">
+<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
+<td class="colLast"><code><strong><a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html#toString()">toString</a></strong>()</code>&nbsp;</td>
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+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods_inherited_from_class_java.lang.Object">
+<!--   -->
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+<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
+<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang
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+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="details">
+<ul class="blockList">
+<li class="blockList">
+<!-- ========= CONSTRUCTOR DETAIL ======== -->
+<ul class="blockList">
+<li class="blockList"><a name="constructor_detail">
+<!--   -->
+</a>
+<h3>Constructor Detail</h3>
+<a name="HDFSBlocksDistribution()">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>HDFSBlocksDistribution</h4>
+<pre>public&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.104">HDFSBlocksDistribution</a>()</pre>
+<div class="block">Constructor</div>
+</li>
+</ul>
+</li>
+</ul>
+<!-- ============ METHOD DETAIL ========== -->
+<ul class="blockList">
+<li class="blockList"><a name="method_detail">
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+</a>
+<h3>Method Detail</h3>
+<a name="toString()">
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+<ul class="blockList">
+<li class="blockList">
+<h4>toString</h4>
+<pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.113">toString</a>()</pre>
+<dl>
+<dt><strong>Overrides:</strong></dt>
+<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
+<dt><span class="strong">See Also:</span></dt><dd><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang"><code>Object.toString()</code></a></dd></dl>
+</li>
+</ul>
+<a name="addHostsAndBlockWeight(java.lang.String[], long)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>addHostsAndBlockWeight</h4>
+<pre>public&nbsp;void&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.123">addHostsAndBlockWeight</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;hosts,
+                          long&nbsp;weight)</pre>
+<div class="block">add some weight to a list of hosts, update the value of unique block weight</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>hosts</code> - the list of the host</dd><dd><code>weight</code> - the weight</dd></dl>
+</li>
+</ul>
+<a name="getHostAndWeights()">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getHostAndWeights</h4>
+<pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution.HostAndWeight</a>&gt;&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.167">getHostAndWeights</a>()</pre>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the hosts and their weights</dd></dl>
+</li>
+</ul>
+<a name="getWeight(java.lang.String)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getWeight</h4>
+<pre>public&nbsp;long&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.177">getWeight</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;host)</pre>
+<div class="block">return the weight for a specific host, that will be the total bytes of all
+ blocks on the host</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>host</code> - the host name</dd>
+<dt><span class="strong">Returns:</span></dt><dd>the weight of the given host</dd></dl>
+</li>
+</ul>
+<a name="getUniqueBlocksTotalWeight()">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getUniqueBlocksTotalWeight</h4>
+<pre>public&nbsp;long&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.191">getUniqueBlocksTotalWeight</a>()</pre>
+<dl><dt><span class="strong">Returns:</span></dt><dd>the sum of all unique blocks' weight</dd></dl>
+</li>
+</ul>
+<a name="getBlockLocalityIndex(java.lang.String)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getBlockLocalityIndex</h4>
+<pre>public&nbsp;float&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.200">getBlockLocalityIndex</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;host)</pre>
+<div class="block">return the locality index of a given host</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>host</code> - the host name</dd>
+<dt><span class="strong">Returns:</span></dt><dd>the locality index of the given host</dd></dl>
+</li>
+</ul>
+<a name="add(org.apache.hadoop.hbase.HDFSBlocksDistribution)">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>add</h4>
+<pre>public&nbsp;void&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.214">add</a>(<a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution</a>&nbsp;otherBlocksDistribution)</pre>
+<div class="block">This will add the distribution from input to this object</div>
+<dl><dt><span class="strong">Parameters:</span></dt><dd><code>otherBlocksDistribution</code> - the other hdfs blocks distribution</dd></dl>
+</li>
+</ul>
+<a name="getTopHosts()">
+<!--   -->
+</a>
+<ul class="blockList">
+<li class="blockList">
+<h4>getTopHosts</h4>
+<pre>public&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.228">getTopHosts</a>()</pre>
+<div class="block">return the sorted list of hosts in terms of their weights</div>
+</li>
+</ul>
+<a name="getTopHostsWithWeights()">
+<!--   -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>getTopHostsWithWeights</h4>
+<pre>public&nbsp;<a href="../../../../org/apache/hadoop/hbase/HDFSBlocksDistribution.HostAndWeight.html" title="class in org.apache.hadoop.hbase">HDFSBlocksDistribution.HostAndWeight</a>[]&nbsp;<a href="../../../../src-html/org/apache/hadoop/hbase/HDFSBlocksDistribution.html#line.240">getTopHostsWithWeights</a>()</pre>
+<div class="block">return the sorted list of hosts in terms of their weights</div>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
+</div>
+<!-- ========= END OF CLASS DATA ========= -->
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